’04 Corolla_U (L/O 0306)
Checking the engine coolant
level
Look at the see−through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “FULL” and “LOW” lines on the
reservoir. If the level is low, add ethyl-
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
ene−glycol type coolant for
a
proper
corrosion protection of aluminum com-
ponents.
Coolant type selection
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “LOW” line, add
coolant. Bring the level up to the “FULL”
line.
Use of improper coolants may damage
your engine cooling system. Your coolant
must contain ethylene−glycol type coolant
for proper corrosion protection of your en-
gine that contains aluminum components.
Always use ethylene−glycol type coolant
for a proper corrosion protection of alumi-
num components. See information in the
next column.
We have used “Toyota Genuine Long Life
Coolant” in your Toyota vehicle. In order
to avoid technical problems, we strongly
recommend using “Toyota Genuine Long
Life Coolant” or equivalent.
To ensure excellent lubrication perfor-
mance for your engine, “Toyota Genuine
Motor Oil” is available, which has been
specifically tested and approved for all
Toyota engines.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, engine coolant filler cap,
radiator cap and drain cock and water
pump.
In addition to preventing freezing and sub-
sequent damage to the engine, this type
of coolant will also prevent corrosion. Fur-
ther supplemental inhibitors or additives
are neither needed nor recommended.
Please contact your Toyota dealer for fur-
ther details about “Toyota Genuine Motor
Oil”.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
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2004 COROLLA from Oct. ’03 Prod. (OM12859U)
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